./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/spaghetti.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/spaghetti.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7c74aec Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/spaghetti.wvr.c ./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/spaghetti.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.fix-undeclared-acsl-variable-e7c74ae-m [2024-02-07 19:20:41,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-07 19:20:41,427 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-07 19:20:41,432 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-07 19:20:41,432 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-07 19:20:41,459 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-07 19:20:41,460 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-07 19:20:41,460 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-07 19:20:41,461 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-07 19:20:41,464 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-07 19:20:41,465 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-07 19:20:41,465 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-07 19:20:41,466 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-07 19:20:41,467 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-07 19:20:41,468 INFO L153 SettingsManager]: * Use SBE=true [2024-02-07 19:20:41,468 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-07 19:20:41,468 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-07 19:20:41,468 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-07 19:20:41,469 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-07 19:20:41,469 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-07 19:20:41,469 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-07 19:20:41,470 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-07 19:20:41,471 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-07 19:20:41,471 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-07 19:20:41,471 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-07 19:20:41,471 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-07 19:20:41,472 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-07 19:20:41,472 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-07 19:20:41,472 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-07 19:20:41,473 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-07 19:20:41,474 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-07 19:20:41,474 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-07 19:20:41,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:20:41,474 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-07 19:20:41,475 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-07 19:20:41,475 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-07 19:20:41,475 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-07 19:20:41,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-07 19:20:41,475 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-07 19:20:41,475 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-07 19:20:41,476 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-07 19:20:41,476 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-07 19:20:41,476 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-07 19:20:41,476 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-07 19:20:41,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-07 19:20:41,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-07 19:20:41,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-07 19:20:41,731 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-07 19:20:41,731 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-07 19:20:41,732 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-02-07_10-47-16.files/SV-COMP24_unreach-call/spaghetti.wvr.yml/witness.yml [2024-02-07 19:20:41,837 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-07 19:20:41,838 INFO L274 PluginConnector]: CDTParser initialized [2024-02-07 19:20:41,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/spaghetti.wvr.c [2024-02-07 19:20:42,883 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-07 19:20:43,070 INFO L384 CDTParser]: Found 1 translation units. [2024-02-07 19:20:43,070 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/spaghetti.wvr.c [2024-02-07 19:20:43,078 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ad744ea5/650ae2499a504ca9a1c8767eb51b56ab/FLAGa91d6db03 [2024-02-07 19:20:43,099 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ad744ea5/650ae2499a504ca9a1c8767eb51b56ab [2024-02-07 19:20:43,100 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-07 19:20:43,101 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-07 19:20:43,104 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-07 19:20:43,104 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-07 19:20:43,108 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-07 19:20:43,108 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:20:41" (1/2) ... [2024-02-07 19:20:43,109 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@745cca64 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:20:43, skipping insertion in model container [2024-02-07 19:20:43,120 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:20:41" (1/2) ... [2024-02-07 19:20:43,125 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3bd2c14d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 07.02 07:20:43, skipping insertion in model container [2024-02-07 19:20:43,125 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:20:43" (2/2) ... [2024-02-07 19:20:43,126 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@745cca64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:20:43, skipping insertion in model container [2024-02-07 19:20:43,126 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 07:20:43" (2/2) ... [2024-02-07 19:20:43,126 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-07 19:20:43,146 INFO L74 edCorrectnessWitness]: Found the following entries in the witness: [2024-02-07 19:20:43,147 INFO L76 edCorrectnessWitness]: Location invariant before [L106-L106] x_1 == 0U [2024-02-07 19:20:43,147 INFO L76 edCorrectnessWitness]: Location invariant before [L86-L86] x_1 % 2U == 0U [2024-02-07 19:20:43,147 INFO L76 edCorrectnessWitness]: Location invariant before [L55-L55] x_0 == 0U [2024-02-07 19:20:43,148 INFO L76 edCorrectnessWitness]: Location invariant before [L71-L71] x_0 == 0U [2024-02-07 19:20:43,152 INFO L76 edCorrectnessWitness]: Location invariant before [L90-L90] x_1 == 0U [2024-02-07 19:20:43,152 INFO L76 edCorrectnessWitness]: Location invariant before [L99-L99] x_1 % 2U == 0U [2024-02-07 19:20:43,152 INFO L76 edCorrectnessWitness]: Location invariant before [L64-L64] x_0 % 2U == 0U [2024-02-07 19:20:43,152 INFO L76 edCorrectnessWitness]: Location invariant before [L51-L51] x_0 % 2U == 0U [2024-02-07 19:20:43,174 INFO L181 MainTranslator]: Built tables and reachable declarations [2024-02-07 19:20:43,373 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/spaghetti.wvr.c[3273,3286] [2024-02-07 19:20:43,380 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:20:43,393 INFO L206 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-07 19:20:43,448 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/spaghetti.wvr.c[3273,3286] [2024-02-07 19:20:43,450 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-02-07 19:20:43,465 INFO L211 MainTranslator]: Completed translation [2024-02-07 19:20:43,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:20:43 WrapperNode [2024-02-07 19:20:43,466 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-07 19:20:43,467 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-07 19:20:43,467 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-07 19:20:43,467 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-07 19:20:43,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:20:43" (1/1) ... [2024-02-07 19:20:43,491 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:20:43" (1/1) ... [2024-02-07 19:20:43,505 INFO L138 Inliner]: procedures = 23, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 79 [2024-02-07 19:20:43,507 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-07 19:20:43,507 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-07 19:20:43,507 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-07 19:20:43,508 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-07 19:20:43,516 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:20:43" (1/1) ... [2024-02-07 19:20:43,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:20:43" (1/1) ... [2024-02-07 19:20:43,519 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:20:43" (1/1) ... [2024-02-07 19:20:43,538 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-02-07 19:20:43,539 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:20:43" (1/1) ... [2024-02-07 19:20:43,539 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:20:43" (1/1) ... [2024-02-07 19:20:43,548 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:20:43" (1/1) ... [2024-02-07 19:20:43,551 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:20:43" (1/1) ... [2024-02-07 19:20:43,553 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:20:43" (1/1) ... [2024-02-07 19:20:43,554 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:20:43" (1/1) ... [2024-02-07 19:20:43,560 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-07 19:20:43,561 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-07 19:20:43,561 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-07 19:20:43,561 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-07 19:20:43,562 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:20:43" (1/1) ... [2024-02-07 19:20:43,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-07 19:20:43,579 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-07 19:20:43,597 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-02-07 19:20:43,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-02-07 19:20:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-07 19:20:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-07 19:20:43,637 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-07 19:20:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-07 19:20:43,637 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-07 19:20:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-07 19:20:43,638 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-07 19:20:43,638 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-02-07 19:20:43,638 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-02-07 19:20:43,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-07 19:20:43,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-07 19:20:43,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-07 19:20:43,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-07 19:20:43,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-07 19:20:43,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-07 19:20:43,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-07 19:20:43,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-07 19:20:43,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-07 19:20:43,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-07 19:20:43,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-07 19:20:43,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-07 19:20:43,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-07 19:20:43,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-07 19:20:43,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-07 19:20:43,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-07 19:20:43,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-07 19:20:43,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-07 19:20:43,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-07 19:20:43,641 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-07 19:20:43,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-07 19:20:43,642 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-07 19:20:43,753 INFO L244 CfgBuilder]: Building ICFG [2024-02-07 19:20:43,754 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-07 19:20:43,930 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-07 19:20:43,931 INFO L293 CfgBuilder]: Performing block encoding [2024-02-07 19:20:44,081 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-07 19:20:44,082 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-02-07 19:20:44,082 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:20:44 BoogieIcfgContainer [2024-02-07 19:20:44,082 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-07 19:20:44,084 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-07 19:20:44,084 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-07 19:20:44,087 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-07 19:20:44,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 07.02 07:20:41" (1/4) ... [2024-02-07 19:20:44,088 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5720f006 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 07.02 07:20:44, skipping insertion in model container [2024-02-07 19:20:44,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 07:20:43" (2/4) ... [2024-02-07 19:20:44,088 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5720f006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:20:44, skipping insertion in model container [2024-02-07 19:20:44,088 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 07:20:43" (3/4) ... [2024-02-07 19:20:44,089 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5720f006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 07:20:44, skipping insertion in model container [2024-02-07 19:20:44,089 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.02 07:20:44" (4/4) ... [2024-02-07 19:20:44,090 INFO L112 eAbstractionObserver]: Analyzing ICFG spaghetti.wvr.c [2024-02-07 19:20:44,105 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-07 19:20:44,106 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-02-07 19:20:44,106 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-07 19:20:44,175 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-02-07 19:20:44,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 69 transitions, 166 flow [2024-02-07 19:20:44,265 INFO L124 PetriNetUnfolderBase]: 8/65 cut-off events. [2024-02-07 19:20:44,266 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-02-07 19:20:44,274 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 65 events. 8/65 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 172 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2024-02-07 19:20:44,275 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 69 transitions, 166 flow [2024-02-07 19:20:44,280 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 64 transitions, 152 flow [2024-02-07 19:20:44,298 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-07 19:20:44,303 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@59d565b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-07 19:20:44,303 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-02-07 19:20:44,310 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-07 19:20:44,310 INFO L124 PetriNetUnfolderBase]: 1/9 cut-off events. [2024-02-07 19:20:44,310 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-07 19:20:44,310 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:20:44,311 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-02-07 19:20:44,311 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 18 more)] === [2024-02-07 19:20:44,315 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:20:44,316 INFO L85 PathProgramCache]: Analyzing trace with hash 325125127, now seen corresponding path program 1 times [2024-02-07 19:20:44,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:20:44,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580323175] [2024-02-07 19:20:44,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:20:44,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:20:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:20:44,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:20:44,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:20:44,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580323175] [2024-02-07 19:20:44,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580323175] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:20:44,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:20:44,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-07 19:20:44,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478408881] [2024-02-07 19:20:44,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:20:44,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-02-07 19:20:44,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:20:44,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-02-07 19:20:44,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-02-07 19:20:44,586 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 69 [2024-02-07 19:20:44,588 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 64 transitions, 152 flow. Second operand has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:20:44,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:20:44,589 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 69 [2024-02-07 19:20:44,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:20:46,776 INFO L124 PetriNetUnfolderBase]: 18581/25393 cut-off events. [2024-02-07 19:20:46,777 INFO L125 PetriNetUnfolderBase]: For 974/974 co-relation queries the response was YES. [2024-02-07 19:20:46,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49668 conditions, 25393 events. 18581/25393 cut-off events. For 974/974 co-relation queries the response was YES. Maximal size of possible extension queue 1423. Compared 156135 event pairs, 13207 based on Foata normal form. 5310/24948 useless extension candidates. Maximal degree in co-relation 44230. Up to 23281 conditions per place. [2024-02-07 19:20:46,938 INFO L140 encePairwiseOnDemand]: 57/69 looper letters, 39 selfloop transitions, 0 changer transitions 0/52 dead transitions. [2024-02-07 19:20:46,939 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 52 transitions, 206 flow [2024-02-07 19:20:46,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-02-07 19:20:46,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-02-07 19:20:46,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 85 transitions. [2024-02-07 19:20:46,949 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6159420289855072 [2024-02-07 19:20:46,951 INFO L175 Difference]: Start difference. First operand has 69 places, 64 transitions, 152 flow. Second operand 2 states and 85 transitions. [2024-02-07 19:20:46,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 52 transitions, 206 flow [2024-02-07 19:20:47,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 52 transitions, 190 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-02-07 19:20:47,005 INFO L231 Difference]: Finished difference. Result has 54 places, 52 transitions, 112 flow [2024-02-07 19:20:47,007 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=112, PETRI_PLACES=54, PETRI_TRANSITIONS=52} [2024-02-07 19:20:47,010 INFO L281 CegarLoopForPetriNet]: 69 programPoint places, -15 predicate places. [2024-02-07 19:20:47,010 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 52 transitions, 112 flow [2024-02-07 19:20:47,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 19.0) internal successors, (38), 2 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:20:47,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:20:47,010 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:20:47,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-07 19:20:47,011 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 18 more)] === [2024-02-07 19:20:47,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:20:47,012 INFO L85 PathProgramCache]: Analyzing trace with hash 816397432, now seen corresponding path program 1 times [2024-02-07 19:20:47,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:20:47,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816773027] [2024-02-07 19:20:47,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:20:47,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:20:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:20:47,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:20:47,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:20:47,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816773027] [2024-02-07 19:20:47,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816773027] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:20:47,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:20:47,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-07 19:20:47,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297826450] [2024-02-07 19:20:47,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:20:47,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:20:47,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:20:47,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:20:47,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:20:47,429 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 69 [2024-02-07 19:20:47,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 52 transitions, 112 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:20:47,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:20:47,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 69 [2024-02-07 19:20:47,433 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:20:50,706 INFO L124 PetriNetUnfolderBase]: 40868/53675 cut-off events. [2024-02-07 19:20:50,710 INFO L125 PetriNetUnfolderBase]: For 322/322 co-relation queries the response was YES. [2024-02-07 19:20:50,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106512 conditions, 53675 events. 40868/53675 cut-off events. For 322/322 co-relation queries the response was YES. Maximal size of possible extension queue 2929. Compared 330984 event pairs, 13953 based on Foata normal form. 1/43250 useless extension candidates. Maximal degree in co-relation 106509. Up to 25283 conditions per place. [2024-02-07 19:20:50,930 INFO L140 encePairwiseOnDemand]: 60/69 looper letters, 84 selfloop transitions, 10 changer transitions 17/120 dead transitions. [2024-02-07 19:20:50,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 120 transitions, 478 flow [2024-02-07 19:20:50,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:20:50,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:20:50,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 164 transitions. [2024-02-07 19:20:50,933 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5942028985507246 [2024-02-07 19:20:50,934 INFO L175 Difference]: Start difference. First operand has 54 places, 52 transitions, 112 flow. Second operand 4 states and 164 transitions. [2024-02-07 19:20:50,934 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 120 transitions, 478 flow [2024-02-07 19:20:50,935 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 120 transitions, 478 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-07 19:20:50,937 INFO L231 Difference]: Finished difference. Result has 60 places, 62 transitions, 190 flow [2024-02-07 19:20:50,937 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=60, PETRI_TRANSITIONS=62} [2024-02-07 19:20:50,938 INFO L281 CegarLoopForPetriNet]: 69 programPoint places, -9 predicate places. [2024-02-07 19:20:50,938 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 62 transitions, 190 flow [2024-02-07 19:20:50,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:20:50,939 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-07 19:20:50,939 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-02-07 19:20:50,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-07 19:20:50,939 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 18 more)] === [2024-02-07 19:20:50,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-07 19:20:50,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1139030256, now seen corresponding path program 2 times [2024-02-07 19:20:50,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-07 19:20:50,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980871770] [2024-02-07 19:20:50,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-07 19:20:50,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-07 19:20:50,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-07 19:20:51,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-07 19:20:51,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-07 19:20:51,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980871770] [2024-02-07 19:20:51,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980871770] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-07 19:20:51,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-07 19:20:51,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-02-07 19:20:51,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113872288] [2024-02-07 19:20:51,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-07 19:20:51,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-07 19:20:51,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-07 19:20:51,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-07 19:20:51,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-07 19:20:51,147 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 69 [2024-02-07 19:20:51,147 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 62 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:20:51,147 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-07 19:20:51,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 69 [2024-02-07 19:20:51,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-07 19:20:54,548 INFO L124 PetriNetUnfolderBase]: 46955/62490 cut-off events. [2024-02-07 19:20:54,548 INFO L125 PetriNetUnfolderBase]: For 16653/16653 co-relation queries the response was YES. [2024-02-07 19:20:54,620 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139836 conditions, 62490 events. 46955/62490 cut-off events. For 16653/16653 co-relation queries the response was YES. Maximal size of possible extension queue 3360. Compared 395740 event pairs, 17158 based on Foata normal form. 1/50951 useless extension candidates. Maximal degree in co-relation 139830. Up to 32304 conditions per place. [2024-02-07 19:20:54,657 INFO L140 encePairwiseOnDemand]: 60/69 looper letters, 0 selfloop transitions, 0 changer transitions 136/136 dead transitions. [2024-02-07 19:20:54,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 136 transitions, 668 flow [2024-02-07 19:20:54,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-07 19:20:54,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-07 19:20:54,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 163 transitions. [2024-02-07 19:20:54,660 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5905797101449275 [2024-02-07 19:20:54,660 INFO L175 Difference]: Start difference. First operand has 60 places, 62 transitions, 190 flow. Second operand 4 states and 163 transitions. [2024-02-07 19:20:54,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 136 transitions, 668 flow [2024-02-07 19:20:54,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 136 transitions, 668 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-02-07 19:20:54,672 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2024-02-07 19:20:54,672 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=61, PETRI_TRANSITIONS=0} [2024-02-07 19:20:54,673 INFO L281 CegarLoopForPetriNet]: 69 programPoint places, -8 predicate places. [2024-02-07 19:20:54,673 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2024-02-07 19:20:54,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-07 19:20:54,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 21 remaining) [2024-02-07 19:20:54,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 21 remaining) [2024-02-07 19:20:54,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 21 remaining) [2024-02-07 19:20:54,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 21 remaining) [2024-02-07 19:20:54,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 21 remaining) [2024-02-07 19:20:54,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 21 remaining) [2024-02-07 19:20:54,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (14 of 21 remaining) [2024-02-07 19:20:54,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 21 remaining) [2024-02-07 19:20:54,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 21 remaining) [2024-02-07 19:20:54,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 21 remaining) [2024-02-07 19:20:54,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 21 remaining) [2024-02-07 19:20:54,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 21 remaining) [2024-02-07 19:20:54,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 21 remaining) [2024-02-07 19:20:54,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 21 remaining) [2024-02-07 19:20:54,679 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 21 remaining) [2024-02-07 19:20:54,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 21 remaining) [2024-02-07 19:20:54,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 21 remaining) [2024-02-07 19:20:54,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 21 remaining) [2024-02-07 19:20:54,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 21 remaining) [2024-02-07 19:20:54,680 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err1ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 21 remaining) [2024-02-07 19:20:54,681 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread4Err0ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 21 remaining) [2024-02-07 19:20:54,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-07 19:20:54,681 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2024-02-07 19:20:54,686 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-02-07 19:20:54,686 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-02-07 19:20:54,690 INFO L503 ceAbstractionStarter]: Automizer considered 8 witness invariants [2024-02-07 19:20:54,690 INFO L504 ceAbstractionStarter]: WitnessConsidered=8 [2024-02-07 19:20:54,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 07:20:54 BasicIcfg [2024-02-07 19:20:54,691 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-02-07 19:20:54,692 INFO L158 Benchmark]: Toolchain (without parser) took 11590.61ms. Allocated memory was 130.0MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 57.9MB in the beginning and 7.0GB in the end (delta: -6.9GB). Peak memory consumption was 920.3MB. Max. memory is 16.1GB. [2024-02-07 19:20:54,692 INFO L158 Benchmark]: Witness Parser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:20:54,692 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 130.0MB. Free memory was 103.2MB in the beginning and 103.0MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-02-07 19:20:54,693 INFO L158 Benchmark]: CACSL2BoogieTranslator took 362.25ms. Allocated memory was 130.0MB in the beginning and 178.3MB in the end (delta: 48.2MB). Free memory was 57.7MB in the beginning and 138.3MB in the end (delta: -80.6MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2024-02-07 19:20:54,693 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.79ms. Allocated memory is still 178.3MB. Free memory was 138.3MB in the beginning and 136.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 19:20:54,693 INFO L158 Benchmark]: Boogie Preprocessor took 52.73ms. Allocated memory is still 178.3MB. Free memory was 136.2MB in the beginning and 134.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-02-07 19:20:54,694 INFO L158 Benchmark]: RCFGBuilder took 521.57ms. Allocated memory is still 178.3MB. Free memory was 134.1MB in the beginning and 103.7MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-02-07 19:20:54,694 INFO L158 Benchmark]: TraceAbstraction took 10606.94ms. Allocated memory was 178.3MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 102.7MB in the beginning and 7.0GB in the end (delta: -6.9GB). Peak memory consumption was 915.3MB. Max. memory is 16.1GB. [2024-02-07 19:20:54,696 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.17ms. Allocated memory is still 130.0MB. Free memory is still 89.9MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.16ms. Allocated memory is still 130.0MB. Free memory was 103.2MB in the beginning and 103.0MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 362.25ms. Allocated memory was 130.0MB in the beginning and 178.3MB in the end (delta: 48.2MB). Free memory was 57.7MB in the beginning and 138.3MB in the end (delta: -80.6MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.79ms. Allocated memory is still 178.3MB. Free memory was 138.3MB in the beginning and 136.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.73ms. Allocated memory is still 178.3MB. Free memory was 136.2MB in the beginning and 134.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 521.57ms. Allocated memory is still 178.3MB. Free memory was 134.1MB in the beginning and 103.7MB in the end (delta: 30.4MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * TraceAbstraction took 10606.94ms. Allocated memory was 178.3MB in the beginning and 7.8GB in the end (delta: 7.6GB). Free memory was 102.7MB in the beginning and 7.0GB in the end (delta: -6.9GB). Peak memory consumption was 915.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 55]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 51]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 71]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 64]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 90]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 86]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 127]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 106]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 99]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 108 locations, 21 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 9.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 97 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 82 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 471 IncrementalHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 8 mSDtfsCounter, 471 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=190occurred in iteration=2, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 81 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 78 ConstructedInterpolants, 0 QuantifiedInterpolants, 408 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-02-07 19:20:54,723 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE